/ Thesaurus / M Synonyms of meclizine hydrochloride Find synonyms for: Noun1. meclizine, meclizine hydrochloride, Antivert, antihistamineusage: an antihistamine (trade name Antivert) used to treat or prevent motion sicknessWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language